Question

transformar
a) 155°C em K e F
b) 30°C em K
c) 120° K em F

Answer 1

a) °C=155
k=155
C/5=F-32/9
155/5=F-32/9
5(F-32)=1395
5F-160=1395
5F= 1395+160
5F= 1455
F=1455/5
F=291°


b) °C= 30
K=30

C/5=K/5
30/5=30/5
150=150 ou 6=6

c) 120K

F-32/9=K/5
F-32/9= 120/5
5(F-32)= 1080
5F-160=1080
5F=1080+160
5F= 1140
F=1140/5
F= 228°



Espero ter ajudado! ;)

Answer 2

a) 155 °C em K e °F:

Em K:

$K=C+273 \\ \\ K=155+273 \\ \\ \boxed{K=428 K}$

Em F:

$\dfrac{C}{5} = \dfrac{F-32}{9} \\ \\ \\ \dfrac{155}{5} = \dfrac{F-32}{9} \\ \\ \\ F-32 = \dfrac{155\cdot9}{5} \\ \\ \\ F-32=279 \\ \\ \boxed{F=311\,^o\!F}$

b) 30 °C em K:

$K=C+273 \\ \\ K=30+273 \\ \\ \boxed{K = 303\,K}$

c) 120 K em °F:

$\dfrac{K-273}{5} = \dfrac{F-32}{9} \\ \\ \\ \dfrac{120-273}{5} = \dfrac{F-32}{9} \\ \\ \\ \dfrac{-153}{5} = \dfrac{F-32}{9} \\ \\ \\ (-153)\cdot9=5(F-32) \\ \\ 5F-160=-1377 \\ \\ 5F=-1217 \\ \\ F = \dfrac{-1217}{5} \\ \\ \\ \boxed{F=-243,\!4\,\,^o\!F}$